Summarize the bug (e.g., "Segmentation Fault for extract_triangle_mesh() from Voxel Block Grid")

### Checklist

- [X] I have searched for [similar issues](https://github.com/isl-org/Open3D/issues).
- [X] For Python issues, I have tested with the [latest development wheel](http://www.open3d.org/docs/latest/getting_started.html#development-version-pip).
- [X] I have checked the [release documentation](http://www.open3d.org/docs/release/) and the [latest documentation](http://www.open3d.org/docs/latest/) (for `master` branch).

### Describe the issue

I created a voxel block grid using latest open3d installation. I m able to extract the point cloud but I m not able to extract mesh. It runs for sometimes and throws segmentation fault. I m not sure what is the main cause of it. I m running it on CPU and my RAM is 16.7GB and swap is 2.1 GB

### Steps to reproduce the bug

```python
device = o3d.core.Device("cpu:0")
vbg = o3d.t.geometry.VoxelBlockGrid.load("scene.npz").to(device)
mesh = vbg.extract_triangle_mesh()
```

### Error message

Segmentation fault (core dumped)

### Expected behavior

I m expecting it to generate the mesh.
I want to use it for color map optimization. I tried creating mesh from point_cloud using poisson meshing however the results were not good.
Also are you planning to implement color map optimization or similar functionality in the voxel block grid mode?

### Open3D, Python and System information

```markdown
- Operating system: Ubuntu 18.04
- Python version: Python 3.9
- Open3D version: '0.15.2+7a25f3da'
- System architecture: x86
- Is this a remote workstation?: no
- How did you install Open3D?: build from source
- Compiler version (if built from source): gcc 7.5
```

### Additional information

_No response_